Have you ever heard "Olive Stone Bread"?

Hi, everyone.
Has anyone eaten or heard bread with olive stone?

I have been consulted about possible uses of olive stones by a member of town council of a small island in Japan, called Shodo-shima island.
*Shodo-shima island is located in western Japan. Its climate is suitable to grow olives and it became famous for olive production in Japan.

The story is like this. An olive processing company in this island was requested to distribute olive stones by someone. The person said that s/he will use them for making bread as the purpose of this request.

Now the company is willing to utilize olive stones for more various options, such as bread, if it's edible.

I know olive stones are being used for various purposes, such as biofuel, chicken feed, but I have never heard its use of bake.